arring-dale



(N0 MOdBL) 2Sheets-8heet 1.

R. H. L. ARRINGDALE.

AUTQMATIG PAN.

Patented Nov. 10,1891;

(No Model.) 2 Sheets-Sheet 2. R. H. L. ARRINGDALE.

AUTOMATIC FAN. No. 463,089. Patented Nov. 10,1891.

96' WW WKMM 3 i I V UNITED STATES PATENT OFFICE.

RICHARD II. L. ARRINGDALE, OF RADFORD, VIRGINIA.

AUTOMATIC FAN.

SPECIFICATION forming part of Letters Patent No. 463,089, dated November10, 1891. Application filed January 30, 1891f. Serial No. 379,690. (Nomodel.) I

To all whom it may concern.-

Be it known that I, RICHARD H. L. Annma- DALE, a citizen of the UnitedStates, residing at Radford, in the county of Montgomery and State ofVirginia, have invented certain new and useful Improvements in AutomaticFans, of which the following is a specification.

My invention relates to automatic fans having rotary shafts, upon whichmay be mounted detachably fans of ordinary construction and a suitablemotor for driving said shafts, the fan being adapted for cooling theperson or for use as a fly-fan.

The objects of my invention are to construct a fan of simple mechanism,neat in appearance, and adapted to give cross-currents of air orcurrents in opposite directions; and my invention consists in mountingin a suitable casing a motor preferably driven by a strong spring, twoconcentric vertical shafts, each having a socket for the reception of afan, and suitable gearing between the motor and said shafts, whereby thelatter are driven in opposite directions.

In order that my invention may be fully understood, I will proceed todescribe the same with reference to the accompanying drawings, in whichFigure I is a side elevation of my device, the casing being in axialsection, and Fig. II is a similar View in a plane at right angles tothat of Fig. I.

lrepresents the casing, and 2 the motor, which consists of the spring 3,having winding-wheel 4; and shaft 5,the windin -arbor 6, geared towinding-wheel by pihion' 7, and a drive-wheel 8, connected to thespring-shaft 5 by means of pawl and ratchet 9. The train of gearing forincreasing the rotation consists of a spur-wheel 10, having pinion 11,gearing with the drive-wheel 8, the wheel 12, having pinion 13, gearingwith the periphery of wheel 10, and the changing gear 14, makingconnection between the wheel 12 and the oppositelyrotating shafts 15 16,said changing gear consisting of the horizontal shaft 17 carrying thedifferential wheels 18 19, and the wheels 20 21, rotating in ahorizontal plane, secured to the shafts 15 16, respectively, bearing thesame relation or proportionate size to the wheels 18 19, and adapted tointermesh with said wheels in any suit able manner. The two pairs ofwheels 18 20 and 19 21, which rotate in planes at right angles, may beconnected either by forming beveled cog surfaces upon them or making onea pair, it will be seen that the shafts 15 and 16 rotate at preciselythe same rate.

In mounting the several shafts within the casing, lugs 22 are formed onthe inner surface, and these are perforated for the reception. of theends of the respective shafts. The casing 1 is formed in two halves 2324, each provided with corresponding lugs 25, through which are passedrivets to secure the two halves together. The shafts are all arrangedtransversely to the plane in which the case is separated, and it willtherefore be seen that their ends can be inserted in the perforationsmade to receive them as the halves of the casing are put together.

26 represents the transverse shelf secured in lugs 22, and this isperforated for the pas sage of shaft 16, which has lower collar 27 fixedto it and an upper collar 28 removably attached to it by means of a pin29. The shaft 16 is further provided with a bearing 30 in the upper endof the casing. 15 is j ournaled within the shaft 16 and is supportedtherein by a removable collar 31. The shaft 15 is prevented from beingdrawn upward through shaft 16 by means of its lower horizontalgear-wheel 20. The upper portion 32 of the shaft 15 is removablyattached to said shaft by means of asplit sleeve 33, neatly fitted overthe end of said shaft 15. Each of the shafts is provided at suitablepoints with clamping-sockets 34, having screws 35 for the reception ofhandles 36 of fans 37, which fans, as stated, may be of any ordinary orpreferred form.

The shafts being made to rotate at the same rate in opposite directions,the fans will be The shaftmade to cross each other at two points onopposite sides, one fan being far enough above the other to permit therotation and passing of the fans without interference. The fans beingmade to cross constantly at the same two points, it is obvious that themachine may be placed so as to deliver the cross-currents at the sametime on opposite sides of the person. By rotating the machine as a wholeninety degrees from such position the currents may be receivedalternately. Aside from the above adaptation'of my device, it is obviousthat the reversely-roating fans will operate more effectively than asingle fan orwhich translate the vertical into the horizontal rotation.

I am aware that propellers have been constructed with concentric shaftsrevolving in opposite directions and carrying propeller wheels orblades, so that the said wheels will mutually counteract the vertical orgyratory 1 suitable motor, the reversely-rotated vertical shafts drivenby said motor, and vertical fans extending laterally from the respectiveshafts and adapted to send cross-currents in a horizontal direction,substantially in the manner and for the purposes set forth.

RICHARD H. L. ARRINGDALE. Witnesses:

GEORGE E. CRUsE, IIERVEY S. KNIGHT.

